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Literature summary extracted from
- Mechanism of class 1 (glycosylhydrolase family 47) alpha-mannosidases involved in N-glycan processing and endoplasmic reticulum quality control (2005), J. Biol. Chem., 280, 16197-16207.
Crystallization (Commentary)
| EC Number | Crystallization (Comment) | Organism |
|---|---|---|
| 3.2.1.209 | co-complex with an uncleaved thiodisaccharide substrate analog, hanging drop vapor diffusion method | Homo sapiens |
Protein Variants
| EC Number | Protein Variants | Comment | Organism |
|---|---|---|---|
| 3.2.1.209 | D463N | pH-optimum is 6.8 compared to 7.1 for wild-type enzyme, kcat/Km is 212500fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | D463N/E599Q | pH-optimum is 6.6 compared to 7.1 for wild-type enzyme, kcat/Km is 8.3fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | E330Q | pH-optimum is 5.3 compared to 7.1 for wild-type enzyme, kcat/Km is 809.5fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | E330Q/E599Q | pH-optimum is 6.6 compared to 7.1 for wild-type enzyme, kcat/Km is 340000fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | E599Q | pH-optimum is 6.7 compared to 7.1 for wild-type enzyme, kcat/Km is 17895fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | H524A | pH-optimum is 6.9 compared to 7.1 for wild-type enzyme, kcat/Km is 28.3fold lower than wild-type value | Homo sapiens |
| 3.2.1.209 | R334A | mutant enzyme is not detected in the culture medium, kcat/Km is 28.3fold lower than wild-type value | Homo sapiens |
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.2.1.209 | 0.068 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 5.3, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q | Homo sapiens |  |
| 3.2.1.209 | 0.09 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 7.1, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q | Homo sapiens | |
| 3.2.1.209 | 0.11 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.8, pyridylamine-tagged Man9GlcNAc2, mutant enzyme D463N | Homo sapiens | |
| 3.2.1.209 | 0.11 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 7.1, pyridylamine-tagged Man9GlcNAc2, wild-type enzyme | Homo sapiens | |
| 3.2.1.209 | 0.15 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.6, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q/E599Q | Homo sapiens | |
| 3.2.1.209 | 0.16 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.7, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E599Q | Homo sapiens | |
| 3.2.1.209 | 0.21 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.9, pyridylamine-tagged Man9GlcNAc2, mutant enzyme H524A | Homo sapiens | |
| 3.2.1.209 | 0.26 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.6, pyridylamine-tagged Man9GlcNAc2, mutant enzyme D463N/E599Q | Homo sapiens | |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 3.2.1.209 | endoplasmic reticulum | - |
Homo sapiens | 5783 | - |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.209 | Homo sapiens | Q9UKM7 | recombinant | - |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.209 | alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine + H2O | pyridylamine-tagged Man9GlcNAc2 | Homo sapiens | alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine + D-mannopyranose | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 3.2.1.209 | ERManI | - |
Homo sapiens |
Turnover Number [1/s]
| EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.2.1.209 | 0.000026 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.7, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E599Q | Homo sapiens | |
| 3.2.1.209 | 0.000027 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.6, pyridylamine-tagged Man9GlcNAc2, mutant enzyme D463N/E599Q | Homo sapiens | |
| 3.2.1.209 | 0.00028 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.6, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q/E599Q | Homo sapiens | |
| 3.2.1.209 | 0.0046 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.8, pyridylamine-tagged Man9GlcNAc2, mutant enzyme D463N | Homo sapiens | |
| 3.2.1.209 | 0.018 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 7.1, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q | Homo sapiens | |
| 3.2.1.209 | 0.084 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 5.3, pyridylamine-tagged Man9GlcNAc2, mutant enzyme E330Q | Homo sapiens | |
| 3.2.1.209 | 0.86 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 6.9, pyridylamine-tagged Man9GlcNAc2, mutant enzyme H524A | Homo sapiens | |
| 3.2.1.209 | 3.7 | - |
alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-alpha-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-2-pyridylamine | 37°C, pH 7.1, pyridylamine-tagged Man9GlcNAc2, wild-type enzyme | Homo sapiens | |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.209 | 5.3 | - |
mutant enzyme E330Q | Homo sapiens |
| 3.2.1.209 | 6.6 | - |
mutant enzyme E330Q/E599Q and D463N/E599Q | Homo sapiens |
| 3.2.1.209 | 6.7 | - |
mutant enzyme E599Q | Homo sapiens |
| 3.2.1.209 | 6.8 | - |
mutant enzyme D463N | Homo sapiens |
| 3.2.1.209 | 6.9 | - |
mutant enzyme H524A | Homo sapiens |
| 3.2.1.209 | 7.1 | - |
wild-type enzyme | Homo sapiens |
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